San Bernardino International Airport — San Bernardino, United States

San Bernardino International Airport traces its runways back to Norton Air Force Base, a military installation that closed in 1994 and was subsequently redeveloped for civilian and commercial aviation use in Southern California's Inland Empire. Today SBD handles relatively little scheduled passenger traffic compared with the region's larger airports, but it has become an important logistics node, hosting an Amazon Air cargo hub that moves substantial package volume through the region. The airport retains long military-grade runways originally built for heavy Air Force transport aircraft, a legacy that makes it attractive to cargo carriers and charter operators needing generous pavement length. San Bernardino itself sits east of Los Angeles amid a fast-growing warehousing and distribution corridor, and the airport's redevelopment reflects a broader pattern across former US military bases converted into commercial and industrial assets after Cold War-era base closures reshaped the region's economy.